Parts for your 2020 Honda Odyssey-Engine mount

2020 Honda Odyssey engine mounts — what they do and when to replace them

Engine mounts are absolutely used on the 2020 Honda Odyssey. Honda’s service information for the 2018–2020 Odyssey (J35-series 3.5L V6) and dealer parts catalogues list multiple mounts, including an electronically controlled “active” front engine mount, a hydraulic rear mount, and additional side/torque mounts. These are specified to manage NVH (noise, vibration and harshness) and driveline movement, especially during Variable Cylinder Management operation. Well-known workshop databases used across Australia and New Zealand (e.g., OEM service manuals, ALLDATA, Mitchell 1) also detail inspection and replacement procedures for these mounts.

On the Odyssey, the mounts do more than just hold the engine under the bonnet. They isolate vibration from the cabin, keep the engine and transmission aligned with the driveline, and control how the engine twists under load. The front active mount changes its internal characteristics using vacuum control to calm out low-frequency vibrations, while the rear hydraulic mount and side mounts steady things during acceleration, braking, and rough roads. When any of these start to fail, the van can feel a bit grumbly at idle, thump on take-off, or shudder as gears change.

There’s no fixed replacement interval, but it’s smart to have the mounts checked during routine servicing—particularly from about 80,000–120,000 kilometres, or sooner if there are symptoms. A proper inspection includes looking for perished rubber, collapsed mount height, fluid seepage from hydraulic mounts, cracked brackets, and vacuum line issues to the active mount. Excessive engine movement with the bonnet up and the vehicle in Drive (brakes firmly applied) is another giveaway.

When replacement’s on the cards, the workshop should support the engine safely, swap mounts one at a time, and torque fasteners at normal ride height. On models with the active mount, they’ll verify vacuum supply, check control solenoids and hoses, and clear any related fault codes. It pays to use quality OEM or premium aftermarket mounts—cheapies can transmit more vibration and may not last. After fitment, a quick road test for NVH and a baseline idle check help confirm the job’s spot on.

• Common signs it’s time: increased vibration at idle, clunks on take-off, visible rubber cracking, hydraulic fluid on or near a mount, or a harsh buzz when VCM activates.
• Service tip: address oil or coolant leaks promptly—they degrade mount rubber and shorten service life.

Popular questions about 2020 Honda Odyssey engine mounts

How long do engine mounts typically last on a 2020 Odyssey?
Many owners see 100,000–160,000 kilometres before mounts show their age, but life varies with driving style, road conditions, and fluid leaks. Vehicles doing lots of stop–start city work or towing may need mounts sooner. Regular inspections during scheduled servicing help catch early wear before it turns into cabin vibration or clunks.

What are the symptoms of a failing active engine mount?
A tired active mount often shows up as a low-frequency rumble or buzz at idle, especially in Drive with the air-con on, and a harsher feel when the engine transitions under light throttle. Technicians may also find vacuum hose cracks or a weak vacuum supply. If the mount’s internal diaphragm leaks, expect more vibration and sometimes a slight “ting” on take-off as the engine rocks.

Can a home mechanic replace Odyssey engine mounts?
It’s possible with the right gear—an engine support bar or jack with a block, torque specs, and safe access—but the job can be tight, and the active mount adds vacuum checks and extra plumbing. For most owners, getting a qualified workshop to handle the swap and torque checks is the stress-free route. They’ll also confirm the rest of the mounts are healthy so the new one isn’t overloaded.